CN205483793U - Steel wire rope tension testing machine rupture test buffer based on helical compression spring - Google Patents

Abstract

The utility model provides a steel wire rope tension testing machine rupture test buffer based on helical compression spring, the primary structure includes front header, the sensor, application of force seat, the guiding orientation board, a screw, guide screw, left side pressure disk, a spring, application of force bulb, right side pressure disk, the protection casing, the pneumatic cylinder, the sensor passes through soket head cap screw to be fixed on front header, application of force bulb, application of force seat is respectively through helicitic texture and hydraulic cylinder piston rod, the sensor is connected, a left side, right side pressure disk overlaps respectively at application of force bulb, hydraulic cylinder piston rod is last, six evenly distributed's guide screw is through a left side, right side pressure disk couples together application of force bulb and application of force seat, the spring housing is on hydraulic cylinder piston rod, and be located a left side, between the pressure disk of the right side, the welding of guiding orientation board is on front header, the protection casing inlays the inboard at guiding orientation, and it is tight through the glade clamp. When wire rope split suddenly in tensile test, the spring can reduce front header to be received to guide screw's pulling force when strikeing in the twinkling of an eye, prevents that guide screw from collapsing absolutely.

Description

A buffer device for breaking test of steel wire rope tensile testing machine based on helical compression spring

technical field

The utility model relates to a device used for a tensile testing machine, in particular to a buffer device for a breaking test of a steel wire rope tensile testing machine based on a helical compression spring.

Background technique

Steel wire ropes are mainly used in lifting, traction and other occasions, and the working conditions are relatively harsh. During use, friction and wear, fatigue damage, local broken wires and deformation will occur, which reduces the tensile strength of the steel wire rope. In order to ensure the reliability of the steel wire rope for repeated use, it is necessary to carry out a tension test in accordance with the relevant national standards. In the tensile test, when the tensile force of the steel wire rope is greater than its own tensile strength and suddenly breaks, the piston rod of the hydraulic cylinder of the tensile testing machine will instantly impact the front top beam under the action of hydraulic oil, causing the guide screw at the connection between the force ball head and the force seat The instantaneous tension is too large and it breaks, which makes the tensile testing machine unable to use normally.

The working environment of the testing machine is relatively harsh, and the long-term exposure of the force-applying ball head, force-applying seat, and guide screws will cause sand and dust to adhere to it, which will affect its working performance.

Contents of the invention

The purpose of the utility model is to overcome the above-mentioned deficiencies, and provide a kind of buffering device for breaking test of steel wire rope tension testing machine based on helical compression spring.

The purpose of this utility model is accomplished through the following technical scheme: a kind of buffer device for breaking test of steel wire rope tensile testing machine based on spiral compression spring, the main structure includes front top beam, sensor, force application seat, guide positioning plate, screw, guide screw, left Pressure plate, spring, force application ball head, right pressure plate, protective cover, hydraulic cylinder, the sensor is fixed on the front top beam by hexagon socket head screws, and the force application ball head and force application seat are respectively connected with the threaded structure. The hydraulic cylinder piston rod and the sensor are connected.

The left pressure plate and the right pressure plate are respectively sleeved on the force application ball head and the piston rod of the hydraulic cylinder, and the six uniformly distributed guide screws pass through the left pressure plate and the right pressure plate to guide the The force applying ball head is connected with the described force applying seat.

The spring is sleeved on the piston rod of the hydraulic cylinder, and is located between the left pressure plate and the right pressure plate.

The guide positioning plate is welded on the front top beam, and the protective cover is embedded in the guide positioning plate and clamped by the screw.

The effective gains produced by the utility model are as follows: (1) The spring is set on the piston rod of the hydraulic cylinder, and the use of the left pressure plate and the right pressure plate can make the guide screw evenly stressed and improve the coaxiality of the force applying ball head and the force applying seat. Spend.

(2) When the steel wire rope breaks suddenly in the tensile test, relying on the characteristics of spring compression and energy storage, the pulling force on the guide screw when the front top beam is subjected to an instant impact is reduced, preventing the guide screw from breaking, reducing the vibration of the device, and ensuring the normal operation of the equipment.

(3) The protective cover is embedded in the guide and positioning plate, and is clamped by screws to protect the force-applying ball head, force-applying seat, and guide screws from external damage, and is easy to disassemble and inspect.

Description of drawings

Fig. 1 is a top view of the utility model.

Fig. 2 is the front view of the utility model.

Fig. 3 is a position diagram of the utility model in the complete machine.

Explanation of marks in the figure: 1. Front top beam, 2. Sensor, 3. Force application seat, 4. Hexagon socket screw, 5. Guide positioning plate, 6. Screw, 7. Guide screw, 8. Left pressure plate, 9. Spring, 10. Force application ball head, 11. Right Pressure plate, 12 protective covers, 13 pull rods, 14 hydraulic cylinders, 15 front tackles, 16 wire ropes, 17 rear tackles, 18 racks.

detailed description

The utility model will be described in detail below in conjunction with the accompanying drawings: as shown in Fig. 1, Fig. 2 and Fig. 3, a kind of buffer device for breaking test of a wire rope tensile testing machine based on a spiral compression spring, the main structure includes a front top beam 1, a sensor 2. Force application seat 3, guide positioning plate 5, screw 6, guide screw 7, left pressure plate 8, spring 9, force application ball head 10, right pressure plate 11, protective cover 12, hydraulic cylinder 14, the sensor 2 passes through Hexagon socket head screws are fixed on the front top beam 1, the force application ball head 10 and the force application seat 3 are respectively connected with the hydraulic cylinder 14 piston rod and the sensor 2 through a threaded structure, and the left pressure plate 8 , the right pressure plate 11 are respectively set on the described force applying ball head 10 and the piston rod of the hydraulic cylinder 14, and the six evenly distributed guide screws 7 pass through the left pressure plate 8 and the right pressure plate 11 to guide the The force application ball head 10 is connected with the force application seat 3, the spring 9 is sleeved on the piston rod of the hydraulic cylinder 14, and is located between the left pressure plate 8 and the right pressure plate 11 , the guide positioning plate 5 is welded on the front top beam 1, the protective cover 12 is embedded in the guide positioning plate 5, and is clamped by the screw 6.

The specific operation process: during the wire rope tension test, the hydraulic cylinder 14 exerts a force to the left on the front top beam 1, and the force is applied to the front block 15 through the pull rods 13 on both sides of the front top beam 1, and the connection between the front block 15 and the rear block 17 Steel wire rope 16 is clamped between, rear block 17 is fixed on the frame 18, and front block 15 moves to the left, and front top beam 1 is in the dynamic balance state of force in this process. The moment the steel wire rope 16 breaks, the dynamic balance is broken, and the piston rod of the hydraulic cylinder 14 instantly impacts the force applying seat 3 under the action of the hydraulic oil, and the force applying seat 3, the sensor 2, the front top beam 1 and the guide screw 7 move to the left at an instant acceleration. At the same time, relying on the characteristics of the spring 9 to compress and store energy, it is possible to reduce the pulling force on the guide screw 7 caused by the instantaneous leftward movement of the force-applying seat 3, prevent the guide screw 7 from breaking instantly, and reduce the vibration of the device. Protective cover 12 protectors are not damaged by the outside world, unclamp screw 6 when needing to check device, protective cover is taken off.

Claims (4)

1. a lineoutofservice signal pull testing machine rupture test buffer unit based on helical compression spring, primary structure includes front back timber, sensor, force seat, guide positioning plate, screw, guider screw, left platen, spring, force bulb, right platen, protective cover, hydraulic cylinder, described sensor is fixed on described front back timber by soket head cap screw, and described force bulb, force seat are connected with described hydraulic cylinder piston rod, sensor by helicitic texture respectively.

A kind of lineoutofservice signal pull testing machine rupture test buffer unit based on helical compression spring the most according to claim 1, it is characterized in that: described left platen, right platen are respectively fitted on described force bulb, hydraulic cylinder piston rod, six equally distributed described guider screws exert a force bulb and described force seat couples together by described left platen, right platen by described.

A kind of lineoutofservice signal pull testing machine rupture test buffer unit based on helical compression spring the most according to claim 1, it is characterised in that: described spring housing is on described hydraulic cylinder piston rod, and between described left platen and described right platen.

A kind of lineoutofservice signal pull testing machine rupture test buffer unit based on helical compression spring the most according to claim 1, it is characterized in that: described guide positioning plate is welded on described front back timber, described protective cover is embedded in described guide positioning plate, and by described screws clamp.